]> 2026-04-12T05:02:38+03:00 Service System Entity 0 2012-07-05T02:55:37Z Service System 2012-05-14T00:41:01Z Spohrer, Jim 0 On value and value co-creation: A service systems perspective 0 SSKE Knowledge/hasKnowledgeInServiceConcepts 102 SSKE Knowledge/hasKeyword 102